If you're wondering which of the various brands of water mixable oil paints to use, here's my list of what's available and my thoughts on them.
Water-soluble oil paints are the perfect introduction to oil painting.
A comprehensive list of facts and tips about water mixable oil paints
How to Paint Landscapes/Seascapes | Oil Painting Landscape Tutorial
Learn how to paint landscape art using water-soluble oils for great oil painting tips and techniques that leave out the solvents.